Bruce Rauner, chairman of GTCR Golder Rauner LLC; Pro Football Hall of Famer and former Steelers player John Stallworth, president and CEO of Genesis II; and the Varischetti family are the three new owners.

Rauner, Stallworth and the Varischetti family join James Haslam III, the Paul family and Thomas Tull as new partners with Dan Rooney and his son, Art Rooney II, to help maintain the Rooney family ownership of the Steelers.

The agreement among the Rooney family for closing the transaction was originally set to take place before March 31, but with the possible addition of new investors, the closing will be postponed until May.

In December, NFL owners unanimously approved Dan Rooney buying out his four brothers and becoming majority owner of the team.

At his Hall of Fame induction, Stallworth talked about his first impression of his new job as a Steeler: "It was cold, the trees were equally as barren. It was snowing. In fact, it had been snowing for several days. But, the difference was the people. They will line the highway all the way from the airport into the city -- easily a 20-minute drive. You would have thought it was mid-summer. I came away from that experience with a deep appreciation for the people of western Pennsylvania."

NFL rules mandate one person must own at least 30 percent of a team. Dan Rooney previously controlled 16 percent -- the same as each of his brothers.

Under the new restructuring, Pat and Tim Rooney agreed to sell their entire 16 percent shares.

Dan Rooney's two other brothers -- John and Art Jr. -- will each sell 8 percent and retain 8 percent.

Charlie Morton pitched five-hit ball for seven innings, Neil Walker hit a review-aided home run and the Pittsburgh Pirates beat the Cincinnati Reds 3-0 Sunday in a testy game in which benches cleared after All-Stars Andrew Mcutchen and Brandon Phillips were hit by pitches.